Whisk together eggs, milk, ranch dressing, salt and pepper until smooth.Preheat a pan or stove top griddle over medium low heat. Add butter to the pan. Add bread slices one at a time to the egg mixture. Let it soak for 5-6 seconds on each side. Don’t let it soak too long or it will get soggy so be sure to soak them right before cooking. Add bread to the pan and cook until browned on each side. Serve with a drizzle of ranch dressing and sliced avocado and tomatoes if desired.